Home ASN LookupAS56791

AS56791 CT-AS CityTelekom Ltd.

🇷🇺

Org handle: ORG-CL576-RIPE

RIPE NCCallocatedASPA Published

Announced Prefixes (BGP)

19total

18 IPv41 IPv6

IPv4 Addresses

Allocated (RIR)18,432

Announced (BGP)27,136

IPv6 Addresses

Allocated (RIR)6.3×10²⁹

Announced (BGP)3×10²⁶

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇷🇺 RU

RIR

RIPE NCC

Status

allocated

Allocated

2011-05-17

Routing hygiene

Score 5/100 · Low risk

RPKI ROA coverage

100%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 53/100

All announced prefixes have a valid ROA and a matching IRR route object

Based on 19 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained

Announced Prefixes

(BGP)19

Prefix	RPKI	IRR	Last Seen
94.243.224.0/21	Valid	RIPE	2026-10-26
94.243.224.0/22	Valid	RIPE	2026-10-26
94.243.228.0/22	Valid	RIPE	2026-10-26
94.243.232.0/22	Valid	RIPE	2026-10-26
176.32.128.0/19	Valid	RIPE	2026-10-26
176.32.128.0/20	Valid	RIPE	2026-10-26
176.32.128.0/23	Valid	RIPE	2026-10-26
176.32.144.0/20	Valid	RIPE	2026-10-26
176.32.156.0/22	Valid	RIPE	2026-10-26
176.32.158.0/23	Valid	RIPE	2026-10-26

1-10 of 19

1 / 2

Allocated Prefixes

(RIR)12

Prefix	Country	RIR	Status
94.243.224.0/21	🇷🇺 RU	RIPE	assigned
94.243.232.0/22	🇷🇺 RU	RIPE	assigned
176.32.128.0/19	🇷🇺 RU	RIPENCC	allocated
176.32.144.0/20	🇷🇺 RU	RIPE	assigned
176.119.197.0/24	🇷🇺 RU	RIPENCC	allocated
185.45.100.0/22	🇷🇺 RU	RIPENCC	allocated
185.45.100.0/23	🇷🇺 RU	RIPE	assigned
185.45.102.0/23	🇷🇺 RU	RIPE	assigned
185.134.121.0/24	🇷🇺 RU	RIPE	assigned
185.134.122.0/23	🇷🇺 RU	RIPE	assigned

1-10 of 12

1 / 2

All 19 announced prefixes of AS56791 →

Upstream Providers(3)

ASN	Name
AS12389	🇷🇺ROSTELECOM-AS PJSC Rostelecom
AS20485	🇷🇺TRANSTELECOM Joint Stock Company TransTeleCom
AS31133	🇷🇺MF-MGSM-AS PJSC MegaFon

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS56791 hands its own prefixes to: transit providers, or peers at an exchange.

AS12389ROSTELECOM PJSC Rostelecom15
AS20485TRANSTELECOM Joint Stock Company TransTeleCom4

Transfer History

Registry transfers of AS56791 between organisations.

AS56791Transfer · 2020-05-26
OOO "IT-Region"
RIPE NCC
→
CityTelekom Ltd.
RIPE NCC
AS56791Transfer · 2017-11-08
City-Telekom LLC
RIPE NCC
→
OOO "IT-Region"
RIPE NCC

Date	Resource	From	To	Type
2020-05-26	AS56791	OOO "IT-Region" RIPE NCC	CityTelekom Ltd. RIPE NCC	Transfer
2017-11-08	AS56791	City-Telekom LLC RIPE NCC	OOO "IT-Region" RIPE NCC	Transfer

ASPA

Published3 upstreams, 0 downstreams

Authorized Upstream Providers

AS12389 AS20485 AS31133

Expires 2026-10-27

View full ASPA details →

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/56791

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/56791" | jq